Glossary: PQ

P & F Conveyor

A type of conveyor that utilizes a powered line to transport products for loading onto a free line.

Paint On-Off Control

A coating operation in which the paint spray is interrupted over areas where coating is not desired and is then resumed over areas where coating is required.

Synonyms: Spray Cut, Spray Control, Paint Spray Off

Pattern Width

The width to which paint particles will spread out, when sprayed onto a surface at a certain distance from the spray outlet.

The pattern width will vary according to the viscosity and specific gravity of the paint. Also, when air spray coating is performed, the pattern width will vary in accordance with the type of spray gun used, the air pressure and the opening of the pattern width adjustment knob. When airless coating is performed, the pattern width will vary in accordance with the type of nozzle tip and the pressure at which the paint is supplied. When rotary atomization is performed, the pattern width will vary in accordance with the speed of rotation.

Synonym: Pattern Opening

Penetration Power

The capability to apply a coating of paint to surfaces that are difficult to coat, such as recessed areas of a coating object, or the inside corners of boxes and gutters.

Permeate Flow

The quantity of water that passes through a membrane, per unit of time.

Unit: L / m.

Playback Robot

A robot that can be taught the order, conditions, positions and other aspects of its operation from human manipulations. Playback robots are able to subsequently perform their operations according to the learned information alone.

Point to Point Teaching

A method of teaching a manipulator (robot) to memorize certain set motions in a "point" to "point" fashion.

Pore Size

The nominal diameter of the holes used to express the separating ability of a membrane. (unit: μm)

Porous Support

A layer that contains many pores and that supports a compact layer on the surface of asymmetric membranes and bipolar membranes.

Powder Refining Device

The equipment used in the powder coating process to separate dust, debris and blocking powder from oversprayed paint, in order to prepare the paint powder for reuse. These devices include vibration sieving machines and rotary sifters.

単位: mL / min., g/min., mL / sec., g/sec.

Pre-Purge

The process of replacing the air from a combustion chamber or oven with fresh air, prior to ignition, in order to prevent an explosion.

Pressure Ratio

In a plunger type pump, the ratio of the effective cross sections of the drive division that applies pressure and the liquid pump (for paint, etc.) that receives pressure.

Synonym: Pressure Magnification

Protect Relay

A relay, situated at the heart of the burner circuitry, that will immediately shut down the burner circuitry for safety in the event of any malfunction.

Pump Delivery

Pump delivery refers to the quantity of paint sprayed when a pump is operated under no load discharge conditions. Maximum pump delivery refers to the quantity of paint sprayed when a pump is operated at its maximum permissible speed.

Unit: L / min.

Synonym: Discharge Flow Rate